Ahollow cylinder, open at one end, is constructed of thin sheet metal. the total external surface area of the cylinder is 192pi cm^2. the cylinder has a radius of r cm and a height of h cm.

(i) express h in terms of r and show that the volume, vcm^3 of the cylinder is given by
v=pi/2(192r-r^3).

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

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step-by-step explanation: